Clutch mechanism for motor-driven power-supply units



June 30, 1925.

H. DALTON CLUTCH MECHANISM FOR MOTOR DRIVEN POWER SUPPLY UNITS Filed Jan. 16, 1922 2 Sheets-Sheet 1 'IBY v c; WW

Arron Y 2 Sheets-Sheet ATTORN Y H. DALTON Fil ed Jan. 16. 1922 CLUTCH MECHANISM FOR MOTOR DRIVEN PGWER SUPPLY UNITS June 30, 1925.

Patented June 30, 1925.

UNITED STATES PATE T CFFI E.

.HUBERT DALTON, or STAMFORD, CONNECTICUT. V

CLUTCH MECHANISM FOR MOTOR-DRIVEN lP OWERfSUPPLY UNITS.

Application filed. January 16,1922. Serial No. 529,405.

To all whom it may concern:

Be it known that I, HUBERT DALTON, a citizen of the United States, and a resident of Stamford, county of Fairchild, State of Connecticut, have invented certain new and useful Improvements in a Clutch Mechanism for Motor-Driven Power-Supply Units, of which the followingis a specification.

This invention relates to an improved clutch mechanism for motor driven power supply unit for lathes, drilling or milling machines and similar machines which are usually operated in series by power supplied from a common overhead counter-shaft.

More particularly, one feature of the present improvements resides in the provision of a very simple and effective clutch mechanism for transmitting power from the motor driven shaft to a counter-shaft and driving the latter in either direction.

With the above and other objects in view, the invention consists in the improved motor driven power supply unit and in the form, construction and relative arrangement of its several parts as will be hereinafter more fully described, illustrated in the accompanying drawings and subsequently incorporated in the subjoined claims.

In the drawings wherein I have illustrated one practical and satisfactory embod "iment of the invention and in which similar reference characters designate corresponding parts throughout the several views: b

Figure 1 illustrates a preferred form of my present improvements as applied for use in connection with a metal working machine, certain parts being shown in section;

Figure 2 is a top plan view, the machinev column being shown in section; I

Figure 3 is a detail section taken on the line 3'3 of Figure 2; p

Figure 4; is an enlarged sectional view taken on the line 4.4 of Figure 1;

Figure 5 is a section taken on the line 5-5 of Figure 4; I

Figure 6 is a side elevation ofone' of the gear clutches;

Figure 7 is a fragmentary edge elevation of the clutch.

In the accompanying drawings, for the purpose of showing the mannerof applica' tion and use of the present invention, I have illustrated the same associated with a metal working machine. 'However, I have shown only so much of the latter as is necessary to a clear understanding of thepresent improvements. Accordingly, there may be seen in the drawings the hollow column 5 rlsing'from' the machine base' 6 for supportmg a head frame (not shown) in which head frame the main driving machine is journaled. I As herein disclosed, a supporting base 9 is provided and suitably attached to the machine base 6. Upon the base 9 a nonreversible electric motor 10 of the required size is mounted. The shaft 11 of thismotor isconnected to one end of a power transmitting shaft 12 by means of a suitable coupling 13, the other end of said shaft 12 spindle for the being mounted in a ball-bearing l lprovided in the upper end of the standard'15 fixed to theloase 9. Spaced gears 16 and 17 respectively are keyed or oth'erwise'securely fixed on the'shaft 12. Q

Upon a counter-shaft 18, the relatively large gears 19 and 20 respectively, are loosely mounted'in spaced relation to each other. The gear '19 is provided with a hub extension 19 on one side journaled in the upper end of a bearing standard 21, said hub extension loosely surrounding the counter-shaft 18. Any preferred means maybe provided for lubricating'the bearing extension or hub 19 but as herein shown I provide the upper end of the standard 21 with an oil chamber 22. A ring or annulus 23 of relatively large diameter is loosely hung on the hub extension 19 and'extends into the body of lubricating oil. As the gear hub revolves in the bearing said ring is turned and thus applies oil to the,periph cry of said hub. The bearing hub is also provided with one or more openings 24 through which part of the oil finds its way to the interior surface of said hub.

Theother end I of the counter-shaft 18 is mounted in the upper end of a bearing standard 25 and is lubricated in the same manner; as 'just described. The other gear 20 is with a hub extension 26 on one side which abuts against a stop collar 27 fixed to the counter-shaft 18; I

The faces ofithe gears 19 and 20 which are in opposed relation toeach other are chambered to receive clutch devices whereby the respective gears may be fixed to the countershaft to transmit a positive rotation to the latter. Each of these clutch devices comprises'a double "armed' spi'der 28, the arms e ling n d amet lly epnasit d s s ir n; a p t u i 9 li iiehis keyed iipon the dififintear-shaft TB, as at '30.

' One end of a clutch band section 31 is ina of e epine heaeb 9 said tegi'ally formed with inmate; em tweet mg substantially seml-circula'r in arm." Between the free end of gaeh clntqh lgandsgction 31 and theoppose end 61. the adjacent seet enana en e .3392 aini qten e er 14 is d iwe .-i chi ieiie slp e yanaumed neemnae 7 it ends upon a pin .5 fixed the spide At ether endmatt ess th eairhu 19- a with lon itudin l b913 .8 whi h tennis 'Q nt edieeent o the e her of he l tte Mean-1 s an adiu s able Sc ew .36

whi h i and" n its adj sted pnsi en by means of a lock nut 37.1 3

Ike end-@955 th weiiteizeslief 1,8 eatendis previded neteeat eeisflQ-t hett- 8 atls e net i al y opp site sides oi he there 38 mended w th lana tudinall ex endin sletsea Amd i0. i *loesely eneased n h bo e 8 r pm atingmovemammal a t ensyersely .d sppsed pin 41 is e neen the. ge s? 19. and 20 the fixsdin th inn r nd. at sa d; ra A double Q1: Qhenn l 4:3 and'preventing movement i he pin nto. said openings 1n case the pin 7 shgnld hecgme lcpsened. The plugs i4. are

19mg against, a turning moyement :by means, pf a split centraetilering or band 4-5 whic is adapted in be engagedv in a air: mfenential gngove 46, in the enter" face of hQLCQn AZJ fl he nuter ends .otthe plugs 44 are pgeyided with ker-fs Qnchannelsicdinciding with this groove. One end of the ring r band 45 is 'afngularly bent as at 47 in an nwe dldine tienand is adapted engagene t in an .opening prpyided in the clutch QQne 2;.Zthus lacking-said tagainstna the plugs 44, the latter will beheld against sh the .nodJQ-"is 319K941" casual circumferential shiiting movement. it will: thus be apparent that when thel-split ting e blandfl is pplied-and seated in the gm ve tfiianduin kecis on the. ends of tnrningbr notative movement.

v r eut nvend Qfithe mesa-is pm y i ded teeth a. seemed siellettB withwhich a yoke;

8:01.1. thenppe iend ef a piveted lever 56. is; m atmely engaged:- ,Itwiltrathns beep.- Pnnant theta-When t e lever is? shifted; hnglt ldmmlly ,in v. the

. n ece he.

ha e 9f the wetter-5 li and-th l i e int ne'fi eie n qri he team said lhis' cone at opposite sides is pro- Yided the cirepmierential cone faces 51 which are adapted to cbact with'the screws 35% th ene1 -eesleet hel ers 34 of the gear clutchestdactuate said cliltches and leek-ens 9; the-ether. the gears .19 or to the counter-shaft as the case may be \Vhen the cone ais shi fted in v91M linectiml a d engage wi h the screws 36 Me etheelnt h sa the .elnteh leve s a e racked epee hen vet p ns Strand their angu ar I ends fitsene tingpre su ze aga nstithe free V ends e he aidbend,sec io sagainstthe a nla lnteh eceietthe ge sclut h band see iens. 3 expend The gear 20-is directly engaged with f gear 17 ifixed a the P we tran m t i shaft i2 '13stweenth rgeanl9an.d t e gem;

16 a r r in a 52 s in e pe e s'ei w ea bei g ieu naled up n a stud slim-t3- I 20 i asked t th ounten liaft aid shaft is. tet d in se din et nr wh le hen th the gea 9- is ena d sbafttbe mtatien theseq lier ensed- Upon the e nnteresbafi 1 v a-v steineed pnlil y s keaedor ot erwis ig -dl fined d and 1s .eenneete by means .ef the w i ing be t (no shaw to. the steppe Pulley Time? wil beenparent that when the seen 7 the m in .eperating. spindle of the machine (net shpwnl- While any pneferred means may em:

p aye ier shifting the yokelever 5.0, I PM rahly preside for this purpose a M167 001 ested tetbe upper end cf saidleyenand coupled at its upper end with-any snitable pera ing mechanism .(net shown).. 1

or; ,tinn, .h man:

- From 7 the fere'golng des net .of .aperation and several. adizantages. 05 thezpresent -1n -ventmn i1il be readily undertood; Thusgin the event that :theidniwing belt: from the ovei'be'ad emmten shatt shoiild. 6

tweak print any Other reason it shculd be ame necessary "to. [disconnect the xzgperating spindle oft'he machine time the Q evhead BQWQI' shatt, the. topenz tion' 0f the machine may be continued by means at the. indi- Yidmalpcwer supply Funit. Upan shifting the clutch cone 42 in one direction fr m the neutral pesitinn shQw-n- 1n Figure-1, thefidar 20 is lo ked onjsthe"counter-snail?18 sof-that no ation is. tmnsmitted tron; the motor shaft through the medium of gear- 1? te -the,

eaimtenshait: .onedtieetion- *Thusfthe machine spindle will be driven bya belt (not own); engaging pulley 5% on the counter-shaft. The othe'r geap I9 is re:

tated id y in a revensendireaticn upon the s qantevzshaft 18. Upon shitting the clinch ene eutwaedly 'fnemits neiitral POSYIUOII, he gear '18? is than clutched te the counter everse the netationfi of sge el shaft andethus. transmitapreverse rotatmn t0 the machine spindle while the gear is rotated idly upon the counter-shaft. It will thus be seen that the gears remain constantly in mesh and there is no danger of stripping or breaking the gear teeth as might occur if it were necessary to shift the gears relative to each other.

In the accompanying drawings and the foregoing description, I have disclosed a particular embodiment of the invention which in actual practice has given highly satisfactory results. It will be understood that the motor driven power supply units may be employed as an auxiliary individual power supply means for use in connection with many different kinds of machines which are usually operated in series from a common counter-shaft deriving its power from either a steam, gas or electrically driven engine. Further, it will be apparent that the improved power supply unit is susceptible of many modifications and may be exemplified in various other alternative structures than the example illustrated herein. Accordingly, the privilege is reserved of resorting to all such legitimate changes in the form, proportion and arrangement of the severa co-operating parts as may be fairly embodied within the spirit and scope of the invention as claimed.

I claim:

1. In power supply mechanism, a countershaft, spaced driving gears loosely mounted on said counter-shaft and driven in reverse directions from a common source of power, a clutch device associated with each of said gears, a double clutch cone mounted upon the counter-shaft between said gears, said counter-shaft having a longitudinal bore, a manually reciprocable rod mounted in said bore, and means operatively connecting said rod to the clutch cone whereby the latter may be shifted in either direction to actuate the respective clutch devices and thereby connect one of the driving gears to said counter-shaft to drive the latter in either direction.

2. In power supply mechanism, a countershaft, spaced driving gears loosely mounted upon said counter-shaft and driven in relatively opposite directions from a common source of power, a clutch device associated with each of said driving gears, a double clutch cone mounted upon the counter-shaft between said gears and provided with an internal annualr groove, said counter-shaft having a longitudinal bore, a manually reciprocable rod mounted in said bore, the counter-shaft having diametrically opposed slots communicating with the inner end of said bore, and a pin fixed 'in said rod projecting through the slots and into the annular groove in the clutch actuating cone whereby said cone may be shifted in either direction on the counter-shaft to actuate the respective clutch devices and connect one of the driving gears to the counter-shaft to drive the latter in either direction.

3. In combination, a shaft, a driving gear loosely mounted upon said shaft, an expansible clutch device associated with said gear, said shaft having a longitudinal bore and diametrically opposed slots communicating therewith, a clutch actuating member loosely engaged upon the shaft and having an internal annular groove, a manually operable rod reciprocable in said bore, a pin fixed in said rod, extending through said slots and engaged in the groove of said clutch actuating member, and means connected to the outer end of said rod whereby said member may be shifted upon the shaft to effectively engage the clutch device with said gear and thereby transmit a positive rotation to the shaft.

4. In combination, a shaft, a driving element loosely mounted upon said shaft, an

expansible clutch device associated with said element including pivoted clutch expanding levers, an actuating member for saidlevers loosely mounted on the shaft, and manually operable axially reciprocable means mounted in the shaft and operatively connected to said member to effectively engage the same with the clutch expanding levers and thereby fix the driving element to said shaft to positively rotate the latter.

5. In combination with a shaft and a driving element therefor loosely mounted on the shaft, an expansible clutch device associated with said driving element including pivoted clutch expanding levers, an expanding cone for said levers loosely engaged upon said shaft and provided with an internal annular groove, actuating means for said cone mounted upon the shaft including a pin projecting at its ends into said in ternal groove whereby the cone may be shifted into and out of engagement with the clutch levers, said cone having diametrically opposed openings communicating with said internal groove, threaded plugs closing said openings, and means removably engaged upon the clutch cone and coaeting with such plugs to lock the latter against rotation.

In testimony that I claim the foregoing as my invention, I have signed my name hereunder.

HUBERT DALTON 

